Sorenstam hit the ground running in her first event of the season

In her first tournament of the season, Sorenstam - four shots off the pace going into the round - hit a 68 to finish on seven under.

Karrie Webb was three strokes behind in second, while Hee-Won Han and overnight leader Cristie Kerr tied for third.

Kerr lost her way in the final round, ending up with a three-over-par round of 75 as Sorenstam upped the pressure.